Dynamic Programming pattern
Unique Paths
A robot starts at the top-left corner of an m x n grid and may only move right or down. Return the number of distinct paths it can take to reach the bottom-right corner. Watch it run step by step, then write your own pseudocode and get it checked by AI.
- LeetCode 62
- Medium
- 1 approach
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Dynamic ProgrammingLeetCode 62
Medium
The approach
- 01 Grid DP (tabulation) O(R·C)O(R·C) space
What you will learn
- How to read Unique Paths and spot the dynamic programming pattern in it
- Grid DP (tabulation): O(R·C) time, O(R·C) space
- The pseudocode for each approach, its line lit as the animation runs
- Practice: write your own pseudocode and get it checked
More Dynamic Programming
See Unique Paths run, step by step
Sign in and this page opens on the animation, with all 18 Dynamic Programming problems beside it.
DSA comes with the all labs plan and every ChaiCode batch.